# define _CRT_SECURE_NO_WARNINGS 1
# include<stdio.h>
int exchang(int*a,int*b)
{
	
	int set = 0;
	set = * a;
	*a = *b;
	*b =set;
}
int main()
{
	int a = 8;
	int b = 9;
	exchang(&a, &b);
	printf("%d\n", a);
	printf("%d", b);
	
	return 0;
}